A century of records logged 24 Category 5 hurricanes. The last twenty-five years logged 21. Cut the data any way you like — by intensity, by decade, by where storms form — and the recent decades always look busier. It's tempting to read that as storms intensifying. The record says something quieter, and more interesting: we simply got better at seeing them.
Counts climb. Intensity doesn't.
Plot every Atlantic hurricane since 1851 by the year it formed, and the bars rise toward the present — sharply after 1966. Yet the average peak intensity, the white line, barely moves across the whole span.
Here's what we measured at sea before 1944.
Before 1944, a storm's intensity entered the record only if it struck land — there was no way to measure one over open water. Aircraft reconnaissance began in 1944. Satellites arrived in 1966. Map the at-sea observations by era and the contrast is stark: nothing before 1944, a handful with aircraft, dozens with satellites.
We didn't get more storms. We got more eyes.
Each detection era added new ways to watch a storm's whole life at sea, not just the moment it crossed a coastline. The count of storms with an at-sea observation runs 0 to 6 to 64 across the three eras — a measure of our reach, not the ocean's behavior.
The strongest storms were always there.
Plot peak intensity over time and the pre-satellite storms — in grey — reach Category 5 right alongside the modern ones in teal. We didn't start making Category 5s in 1966. We started catching them.
